Sheet-metal edger.



No. 683,996. Patented Oct. 8, IQOI. S. M. SCHMELTZER.

SHEET METAL EDGER.

{Application filed June 24, 1901,) I (No Model.) 4 Sheets-Sheet l.

l aa I m: mums PETERS co. PhOTmLITMO, wuumamn r;v c

Patented v(mt. :8, l90l.

,S. M. SCHMELTZER.

SHEET METAL EDGEB.

(Application filed June 24, 1901.)

4 Sheets-Sheet 2.

(Nb Model.)

(No Model.)

' Patented Oct. 8, [90L S. M. SCHMELTZER.

SHEET METAL EDGEB.

1: 6 c' Q Q; @5133. f z? '1 i i 0 I I v E as I '1 1' 5 am I i: g l l H 1 2 L f 1' o 7:. 31 1 F j? I LQJ 37 L0} I39: '5 I I I ,i I 1 in:

No. 683,996. Patented Oct; 8, I90l.

s. m. SC HMELTZER. SHEET METAL EDGER.

(Application filed June 24, 1901.)

(No Model.) 4 Shets-Sheat 4.

i W l i //////r/ /////7/2 jaw/Z 2 W 7 JSIWMJOWQZQ UNITED STATES PATENT OFFI E.

SAMUEL M. SCHMELTZER, OF CANTON, OHIO, ASSIGNOR TO THE CANTON MACHINE AND MANUFACTURING COMPANY, OF SAME PLACE.

SHEET-METAL EDGER.

SPECIFICATION forming part of Letters Patent No. 683,996, dated October s, 1901.

Serial No. 65,746. (No model.)

To aZZ whom it ma concern:

Be it known that LSAMUEL M. SCHMELTZER, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Sheet-Metal Edger, of which the following is a specification.

My invention relates to machinery by which a sheet-metal edge is bent to a flange and then folded back over the sheet to lock with another edge similarly bent and folded to form a joint or seam; and the objects of my improvement are to produce a machine that will make a bend and a fold on either or on both sides of a sheet of metal and toward the same or opposite faces of the sheet all in one continuous operation. I attain these objects by the mechanism illustrated in the accompany ing drawings, in which-- Figure 1 is a front elevation of the entire machine; Fig. 2, a vertical section on the line 2 2, Fig. 1; Fig. 3, a top view of the machine, showinga section on the line 3 3, Fig. 2; Fig. 4-, a section on the line at 4, Fig. 3, showing a strip of sheet metal; Fig. 5, a section on the line 5 5, Fig. 3, showing edge flanges bent toward opposite faces of the sheet; and Fig. 6, a section on the line 6 6, Fig. 3, showing the flanges folded back.

Similar numerals refer to similar parts throughout the several views.

The frame sides 1 are connected at the rear by the plate 2, on which plate are formed or attached the guides 3, one or both of which have a side adjustment. The driving-pulley 4 is attached on one end of the driving-shaft 5, which shaft is mounted in j ournal-bearings G in the frame sides 2. On the driving-shaft 5 is attached the driving cog-wheel 7, which meshes in the roller cog-wheel 8 and also in the idle cog-wheel 9, which idle cog-wheel turns on a short shaft 10, attached to one of the frame sides. The roller cog-wheel 8 is attached on the lower one of the two parallel roller-shafts 11, which are located one above the other and are mounted, respectively,in the adjustable journal-bearings 12 in the frame sides. To the rear of and parallel with the roller-shafts 11 are located two feed-shafts 13,

which are also mounted, respectively, in similar adjustable journal bearings 14: in the frame sides.

At one end on each roller-shaft 11 are at tached, respectively, the cog-wheels 15, which mesh with each other, and at the same end on each drive-shaft 13 are attached, respectively, the similar cog-wheels 16, which likewise mesh with each other. Below and between and meshing with the lower cog-Wheels 15 and 16, respectively, is located the idle cogpinion 17, which turns on the short shaft 18, attached to the frame side, by which coggears when the lower roller-shaft is rotated by power communicated by the driving-pulley, driving-shaft, and driving and roller cogwheels the upper roller-shaft is rotated in the reverse direction and each feed-shaft is rotated in the same direction as its opposite and corresponding roller-shaft.

In front of and parallel with and respectively above and below the roller-shafts are located the two intermediate shafts 19, which are mounted,respectively,in the journal-bean ings 20 in the frame sides. Attached on the lower intermediate shaft 19 is the intermediate cog-Wheel 21, which meshes with the idle cog-wheel 9. At one end of each intermediate shaft 19 are'attached, respectively, the bevel cog-wheels 22,which mesh,respectively, with similar bevel cog-wheels 23, attached on the counter-shaft 2%. The counter-shaft 24; is mounted in journal-bearings 25, formed, respectively, in the brackets 26, attached to one of the frame sides.

Located between and parallel with the intermediate shafts 19 and attached at their respective ends to the'frame sides 1 are located the bearing-bars 27. The bearing-bars 27 are located in pairs, one bar of each pair being on opposite sides of the line between the centers of the intermediate shafts 19. Between each pair of bars 27 are located, respectively, two journal-bearing blocks 28, the ends of which blocks are concaved to fit the inner faces of the bars 27, respectively. Screw-threads 29 are cut on each bearing-bar 27, and on either side of the respective journal-bearing blocks 28 on each bar 27 are located correspondingly-threaded jam-nuts 30, by means of which the several blocks can be adjusted along the bars.

Between the bars 27 of the two upper pairs and mounted in the respective journal-bearing blocks 28 are located the groove-disk shaft 31 and the flange-disk shaft 32, and

similarly between the two lower pairs of rods 7 27 and mounted in the respective journalbearing blocks 28 are located the flange-disk shaft 33 and the groove-disk shaft 34. On the upper ends of the shafts 31 and 32 and on the lower ends of the shafts 33 and 34 are attached the bevel cog-wheels 35, which respectively mesh with similar-bevel cog-wheels 36, adjustably attached on the respective intermediate shafts 19.

Olamped to the pair of bars 27, near and outside of the lower and upper ends, respectively, of the flange-disk shafts 32 and 34, are located the guide-frames 37. To the guideframes 37 are attached the guide-bars 38, which are provided withthe guide-channels 39, and the lower flange of the guide-bars 38 are extended by attaching the guide-aprons 40. The guides 3 on the plate 2 are adjusted tothe width of the sheet of metal 41 desired to be edged and the sheet entered between said guides, as shown in Figs. 2 and 4.

On each feed-shaft 13 are mounted two collar feed-rolls'42, which are fixed in position by the set-screws 43. The feed-rolls 42 are adjusted together or apart on the shafts 13, according to the width of the sheet metal 41 to be edged, and are located opposite each other on the respective shafts, and the journal-bearings 14 are so adjusted that the respective faces of the feed-rolls 42 will be in approximate contact and will take hold of and pass through the sheet of metal 41 when the feed-shafts are rotated.

On each roller-shaft 11 is loosely but neatly mounted a thimble 44, the length of which thimble is varied according to the width of the sheet metal to be edged. On the rollershafts and at opposite ends of the respective thimbles are mounted the collars or rolls 45, each having a substantially square annular flange 46, and on the roller-shafts and at the other ends of the respective thimbles are mounted the collars or rolls 47, each located so that the inner sides of said flanges 46 are near but not quite in contact with the respective' outer faces 48 of said rolls 47. Screwthreads 49 are cut on each ro1ler-shaft11,and the collar-rolls 45 and 47 are provided internally with similar threads 50, the threads on either half of each bar being inclined oppositely and in such direction that the rotation of the shafts will tend to move the several rolls to the middle-that is, against the thimbles 44. The threads 49 also provide a means for adjusting the respective rolls along the roller-shafts to bring them in proper line with the sheet metal 41. By an adjustment of the journal-bearings 12 the respective op posing faces of the rolls 45 and 47 are brought in approximate contact to take hold of and pass through the sheet of metal as it is fed by the feed-rolls 42, and at the same time flanges 51 are bent on the edges of the sheet 7 metal, as illustrated in Figs. 2 and 5, by 30. tion of the flanges 46.

Disks 52, having substantially V-shaped grooves 53, are attached, respectively, to the lower and upper ends of the shafts 31 and 33, and disks 54, having substantially V-shaped annular flanges 55, are attached, respectively,

to the upper and lower ends of the shafts 32 and 34, the respective disks being so located that the flanges 55 will enter the grooves 53, and the grooves 53 and the flanges 55 are so located and shaped that the flanges 51, which have been bent on the edges of the sheet metal 41, will enter said grooves 53 and be folded over by the flanges 55, as illustrated in Figs. 2 and 6. V

By means of the various gears described above the feed and bending rolls and the folding-disks are all rotated in the proper direction for performing their described functions 7 V by power applied by belt or otherwise to the The guide-aprons 40,- attached to r I007 larly keep the same up, so it will pass over 7 the lower flange-disk 54 While the operation of the machine has 7 V if to its use in edging a sheet with one flange 1 been illustrated and described with reference bent down and the other flange bent up, it will be readily seen that by changing the relative position of the rolls and-disks both flanges can be turned down or up, and while Iprefer rectly to the bending-rolls, which will carry w it through. The guide bars and aprons can also be omitted; but for practicalpu'rposesl prefer to use them, as described. Having described my invention, what I claim as new, and desire to secure by Letters Patent, is- I 1. In a sheet-metal edger, two parallel rolls located in approximate contact, a substan-' tially square annular flange located on one 7 roll and projecting near the side of the other roll, in combination with two disks located edge to edge on one side of said rolls, a sub-' stantially V-shaped annular groove located 7 on one disk, a similar-shaped annulariflange' located on the other disk and entering said i groove, with suitable shafts for mounting said rolls and disks, and with means of supporting and properly rotating said shafts, sub

stantially as specified,-

1'16' to use the feed-rolls, as described, the same 7 r can be omitted and the sheet metal fed di-' In asheet-metal edger, two parallel feedrolls located in approximate contact, two parallel bending-rolls located in approximate contact with each other and on one side of, and parallel with said feed-rolls, a substantially square annular flange located on one bending-roll and projecting near the side of the other bending-roll, in combination with two disks located edge to edge on the side of said bending-rolls opposite said feed-rolls, a substantially V-shaped annular groove located in one disk, a similar-shaped annular flange located on the other disk and entering said groove, with suitable shafts for mounting said rolls and disks, and with means for supporting and properly rotating said shafts, substantially as specified.

3., In a sheet-metal edger, two parallel rolls located in approximate contact, a substantially square annular flange located on one roll and projecting near the side of the other roll, in combination with two disks located edge to edge on one side of said rolls, a substantially V-shaped annular groove located in one disk, a similar-shaped annular flange located on the other disk and entering said groove, a guide-bar located between said rolls and disks, a guide-channel formed in said guide-bar, with suitable shafts for mounting said rolls and disks, and means for supporting said shafts and guide-bar and for properly rotating said shafts, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL M. SOHMELTZER.

Witnesses:

JOHN E. SHARP, THEO. F. HEIM. 

